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Finding the Fourth Proportional to 5,040.54, 6,941.79 and 4,931.55

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Solution

The fourth proportional to 5,040.54, 6,941.79 and 4,931.55 is: 6,791.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,040.54 : 6,941.79 = 4,931.55 : x
  2. Step 2: Convert to fraction form
    5,040.54/6,941.79 = 4,931.55/x
  3. Step 3: Cross multiply
    5,040.54x = 6,941.79 × 4,931.55
  4. Step 4: Simplify right side
    5,040.54x = 34,233,784.47
  5. Step 5: Solve for x
    x = 34,233,784.47/5,040.54
  6. Step 6: Final answer
    x = 6,791.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.